Main NLP techniques used
“O” or “1” if a technique is detected in the articles
combined text of abstract, title, and keywords
detection of the technique name and the different spellings
bert_alt <- c(
"bert",
"bi-directional encoder representation from transformers",
"bi-directional encoder representations from transformer",
"bi-directional encoder representations from transformers",
"bidirectional encoder representation from transformer",
"bidirectional encoder representation from transformers",
"bidirectional encoder representations from transformer",
"bidirectional encoder representations from transformers",
"bi directional encoder representation from transformer",
"bi directional encoder representation from transformers",
"bi directional encoder representations from transformer",
"bi directional encoder representations from transformers"
)